My feet are bad.

My feet are so stinky! I'm a 29 year old female. I have the normal amount of body odor (ya know, after exercising hard at the gym, if I haven't showered in awhile). But my feeeeett! They smell fine in the morning, I shower and wash them, but after work they are bad. I wear tennis shoes, which have some breathability, But a lot of times have to wear my safety toe shoes, that have no breathability (I work in construction, these things are unavoidable). I'm on my feet more the half the day, usually physical during those times, and in hot weather. I wear cotton socks. Anyone have any products they swear by to make your feet smell better? If I am going straight home, it sucks but usually doesn't bother me. I go home, wash my feet. They still kind of stink, but they get much better. But if I stop at a friend's house first and have to take my shoes off, it's embaressing to smell them across the room (my friends sister came in to the room and said "eww, what's that smell"). My shoes stink now too, and sometimes I can smell my feet when I cross my feet and they are closer. I can't put concrete/dirt covered shoes in the washer every other week. Help meeeee